Authors: Chieng, Sie-Tan And Ted Van Der Gulik
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Published in: CBE Journal » CBE Journal Volume 26 (1984)

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Description: The discharge rate of a standard sprinkler nozzle depends on the operating pres sure at the sprinkler. For each sprinkler with a fixed nozzle (or nozzles) an optimal range of operating pressures exists (Benami 1982). The optimal range of operating pressures, for which the water distribution pattern is considered satisfactory, is different for various types of sprinklers and nozzle diameters. It is lower for small nozzle diameters, and increases as nozzle diameters get larger. The variation of flow rate due to pressure fluctuation on a sys tem has traditionally caused more water to be used than is required for crop growth (Young 1979). Flow variation can be minimized by reducing the pressure fluctuation in the irrigation system. However, pressure fluctuation during field operation cannot be avoided because of elevation differences, friction losses, pump performance, or lateral line sequencing. In order to minimize the pressure change for better water control in irrigation system operations, different types of flow control valves (FCV) have been used.

Keywords: assessment of irrigation flow control valve performance
Citation: Chieng, Sie-Tan and Ted Van der Gulik 1984. ASSESSMENT OF IRRIGATION FLOW CONTROL VALVE PERFORMANCE. Canadian Agricultural Engineering 26(1):21-24.
Volume: 26
Issue: 1
Pages 21 - 24
Date: 1984
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Coverage: Canada
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